Monolith (Jun 14 2011)

Message boards : Technical News : Monolith (Jun 14 2011)

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Author	Message
Matt Lebofsky Volunteer moderator Project administrator Project developer Project scientist Send message Joined: 1 Mar 99 Posts: 1376 Credit: 74,079 RAC: 0	Message 1117102 - Posted: 14 Jun 2011, 23:06:13 UTC
	Usual outage day. Project goes down, we squeeze and copy databases, project comes back up. It seems the mysql replica is oddly unable to keep up with much success anymore. I think the cause is our ridiculously consistent heavy load lately thus keeping the databases busier than normal. Anybody have any theories about what is causing the ridiculously consistent heavy load? What's also a little strange is the CPU/IO load on jocelyn is low... so what's the bottleneck? I'd have to guess network, but it's copying the logs from the master faster than executing the SQL within those logs. So...? And speaking of high production loads I also just noticed we're low on work to split. Prepare for tonight to be a little rocky as files are slow to transfer up from the archives and get radar blanked before being splittable. By the way, the Astropulse assimilators are off because the database table containing the signals had one of its fragments run out of extents. In layman's terms it reached an arbitrary limit that we'll now have to work around. We'll sort this out shortly. Kepler data is here in a big ol' box and being archived down to HPSS. It sure is nice seeing the network graph for the whole lab going from a baseline of ~50 Mbits/sec to ~250 Mbits/sec when we started that procedure. Too bad we're still currently stuck using the HE connection for our uploads/downloads. Maybe someday that'll change. Sorry my posts continue to be intermittent. I apologize but expect things to get worse as the music career will temporary consume me. You may see rather significant periods of silence from me for the next... I dunno... 6 to 12 months? I'm sure the others will chime in as needed if I'm not around. - Matt ____________ -- BOINC/SETI@home network/web/science/development person -- "Any idiot can have a good idea. What is hard is to do it." - Jeanne-Claude
	ID: 1117102 ·

Richard Haselgrove Volunteer tester Send message Joined: 4 Jul 99 Posts: 7669 Credit: 40,241,494 RAC: 21,568	Message 1117103 - Posted: 14 Jun 2011, 23:13:20 UTC - in response to Message 1117102. Last modified: 14 Jun 2011, 23:20:44 UTC
	Anybody have any theories about what is causing the ridiculously consistent heavy load? Yes, you've been splitting practically nothing but "shorties" - very high angle range tasks, from a basketweave survey at Arecibo. Hang on, I'll get you the reference. Edit - try my message 1112964. That covers most of it.
	ID: 1117103 ·

eaglescouter Send message Joined: 28 Dec 02 Posts: 162 Credit: 41,336,839 RAC: 15,708	Message 1117115 - Posted: 14 Jun 2011, 23:54:26 UTC
	Unable to upload results, first box reports: project servers may be temporarily down second box reports: Internal HTTP server error help! ____________ It's not too many computers, it's a lack of circuit breakers for this room. But we can fix it :)
	ID: 1117115 ·

Claggy Volunteer tester Send message Joined: 5 Jul 99 Posts: 3500 Credit: 26,342,532 RAC: 16,546	Message 1117120 - Posted: 14 Jun 2011, 23:59:36 UTC - in response to Message 1117102.
	Thanks for the update Matt, Claggy
	ID: 1117120 ·

perryjay Send message Joined: 20 Aug 02 Posts: 3359 Credit: 9,949,866 RAC: 12,595	Message 1117121 - Posted: 15 Jun 2011, 0:01:16 UTC - in response to Message 1117115.
	Bare with it Eaglescouter, mine tried and got a can't connect to server then turned around a minute later and got right through. It's catch as catch can right now as everybody fills up after the outage. ____________ PROUD MEMBER OF Team Starfire World BOINC
	ID: 1117121 ·

Jeff Mercer Send message Joined: 14 Aug 08 Posts: 89 Credit: 60,291 RAC: 0	Message 1117129 - Posted: 15 Jun 2011, 0:14:42 UTC
	Thanks for the update Matt. So far, I'm running pretty good. I'm getting plenty of work, and so far, no problem uploading or downloading. Enjoy the music !! I play a little Hendrix at times. Takes my mind off of a lot of problems !! Thanks for sticking with the project. I appreciate your hard work.
	ID: 1117129 ·

[seti.international] Philip J. Fry Volunteer tester Send message Joined: 6 Apr 07 Posts: 6632 Credit: 51,235,453 RAC: 17,030	Message 1117154 - Posted: 15 Jun 2011, 1:23:24 UTC - in response to Message 1117102.
	Matt, thanks for the news! *- Best regards!* -** Sutaru Tsureku, team seti.international founder. - Optimize your PC for higher RAC. - SETI@home needs your help. - ____________ >Das Deutsche Cafe. The German Cafe.<
	ID: 1117154 ·

Gary Charpentier Volunteer tester Send message Joined: 25 Dec 00 Posts: 10552 Credit: 5,255,197 RAC: 6,351	Message 1117156 - Posted: 15 Jun 2011, 1:42:39 UTC Last modified: 15 Jun 2011, 1:43:39 UTC
	Break a leg! Or is that only for actors? ____________
	ID: 1117156 ·

Cliff Harding Volunteer tester Send message Joined: 18 Aug 99 Posts: 644 Credit: 35,392,143 RAC: 38,851	Message 1117170 - Posted: 15 Jun 2011, 2:44:46 UTC - in response to Message 1117102.
	It sure is nice seeing the network graph for the whole lab going from a baseline of ~50 Mbits/sec to ~250 Mbits/sec when we started that procedure. Too bad we're still currently stuck using the HE connection for our uploads/downloads. Maybe someday that'll change. Thanks for the update Matt,keep up the good work. I glad someone/something opened the flood gates even though it may not last long, d/l usually moving at 3.67Kb - 15Kb taking hours just shot up to 88Kb - 347Kb and minutes.
	ID: 1117170 ·

Geek@Play Volunteer tester Send message Joined: 31 Jul 01 Posts: 2414 Credit: 79,016,596 RAC: 0	Message 1117185 - Posted: 15 Jun 2011, 3:17:59 UTC
	I would have thought that Matt and the rest of the project staff KNEW they were sending out nothing but shorties. Guess not! ____________ Boinc....Boinc....Boinc....Boinc....
	ID: 1117185 ·

rob smith Volunteer moderator Send message Joined: 7 Mar 03 Posts: 5569 Credit: 22,625,693 RAC: 46,643	Message 1117233 - Posted: 15 Jun 2011, 7:53:48 UTC
	My pet theory - re-try times are too short for the current "shorty storm". In previous existences I've found that the re-try rate can be very sensitive to the time-out time, small changes in that can have very substantial changes in overall throughput of a system. On a more human note, enjoy your music career, and when are you touring the UK? ____________ Bob Smith Member of Seti PIPPS (Pluto is a Planet Protest Society) Somewhere in the (un)known Universe?
	ID: 1117233 ·

Matt Lebofsky Volunteer moderator Project administrator Project developer Project scientist Send message Joined: 1 Mar 99 Posts: 1376 Credit: 74,079 RAC: 0	Message 1117406 - Posted: 15 Jun 2011, 17:43:55 UTC - in response to Message 1117185.
	I would have thought that Matt and the rest of the project staff KNEW they were sending out nothing but shorties. Guess not! Of course we know shorties are a major problem, but some other numbers just aren't adding up... - Matt ____________ -- BOINC/SETI@home network/web/science/development person -- "Any idiot can have a good idea. What is hard is to do it." - Jeanne-Claude
	ID: 1117406 ·

msattler Volunteer tester Send message Joined: 9 Jul 00 Posts: 34711 Credit: 354,621,731 RAC: 377,108	Message 1117410 - Posted: 15 Jun 2011, 17:45:58 UTC - in response to Message 1117406.
	I would have thought that Matt and the rest of the project staff KNEW they were sending out nothing but shorties. Guess not! Of course we know shorties are a major problem, but some other numbers just aren't adding up... - Matt No chance some viral meanie has crept into the works? ____________ ****** "Ask not, what your kitty can do for you. Ask what you can do for your kitty." As it is kitten, so shall it be done.
	ID: 1117410 ·

Richard Haselgrove Volunteer tester Send message Joined: 4 Jul 99 Posts: 7669 Credit: 40,241,494 RAC: 21,568	Message 1117425 - Posted: 15 Jun 2011, 18:22:58 UTC - in response to Message 1117406.
	I would have thought that Matt and the rest of the project staff KNEW they were sending out nothing but shorties. Guess not! Of course we know shorties are a major problem, but some other numbers just aren't adding up... What numbers would those be, Matt? Maybe we can help, looking at it from this end?
	ID: 1117425 ·

Volunteer tester Send message Joined: 9 Apr 02 Posts: 12012 Credit: 19,579,995 RAC: 45,891	Message 1117426 - Posted: 15 Jun 2011, 18:23:54 UTC - in response to Message 1117410. Last modified: 15 Jun 2011, 18:24:22 UTC
	I would have thought that Matt and the rest of the project staff KNEW they were sending out nothing but shorties. Guess not! Of course we know shorties are a major problem, but some other numbers just aren't adding up... - Matt No chance some viral meanie has crept into the works? But of course not! They're running nix which eradicated* viruses long ago, when the Earth was still cooling.
	ID: 1117426 ·

perryjay Send message Joined: 20 Aug 02 Posts: 3359 Credit: 9,949,866 RAC: 12,595	Message 1117441 - Posted: 15 Jun 2011, 19:18:18 UTC
	Did you find the bottleneck? I just got a herd of downloads and they are coming at me fast and furious! Whatever it was, great job guys! ____________ PROUD MEMBER OF Team Starfire World BOINC
	ID: 1117441 ·

KWSN THE Holy Hand Grenade! Volunteer tester Send message Joined: 20 Dec 05 Posts: 1613 Credit: 4,508,762 RAC: 3,163	Message 1117498 - Posted: 15 Jun 2011, 21:46:32 UTC - in response to Message 1117426. Last modified: 15 Jun 2011, 21:49:08 UTC
	[snip] But of course not! They're running nix which eradicated* viruses long ago, when the Earth was still cooling. nix is not immune to virii, but few people write viruses for nix as the damage would be limited - and not as many people are P----d off at Linix or Unix due to them being almost free of cost, as opposed to M$ Windoze... but we're getting off topic... ____________ .
	ID: 1117498 ·

perryjay Send message Joined: 20 Aug 02 Posts: 3359 Credit: 9,949,866 RAC: 12,595	Message 1117504 - Posted: 15 Jun 2011, 21:56:10 UTC
	Something wrong with this batch of work units. I'm getting a ton of -9s. Was afraid it might be me but they are starting to validate against all types of other machines. ____________ PROUD MEMBER OF Team Starfire World BOINC
	ID: 1117504 ·

Volunteer tester Send message Joined: 9 Apr 02 Posts: 12012 Credit: 19,579,995 RAC: 45,891	Message 1117548 - Posted: 15 Jun 2011, 23:20:35 UTC - in response to Message 1117498.
	[snip] But of course not! They're running nix which eradicated* viruses long ago, when the Earth was still cooling. nix is not immune to virii, but few people write viruses for nix as the damage would be limited - and not as many people are P----d off at Linix or Unix due to them being almost free of cost, as opposed to M$ Windoze... but we're getting off topic... Very far off topic. And the plural of virus is viruses. And Windows is spelled with a "ows" much like Linux isn't spelled with an "s" as in Linsux. And I don't think that people are pissed off with Windows because its not free. People don't write viruses for Linux because its not worth the small user base to put the amount of effort into breaking it.
	ID: 1117548 ·

eaglescouter Send message Joined: 28 Dec 02 Posts: 162 Credit: 41,336,839 RAC: 15,708	Message 1117567 - Posted: 16 Jun 2011, 0:05:16 UTC - in response to Message 1117121.
	Bare with it Eaglescouter, mine tried and got a can't connect to server then turned around a minute later and got right through. It's catch as catch can right now as everybody fills up after the outage. I'm still here. Today my machines are unable to upload completed work. "Project servers may be temporarily down" ____________ It's not too many computers, it's a lack of circuit breakers for this room. But we can fix it :)
	ID: 1117567 ·

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Message boards : Technical News : Monolith (Jun 14 2011)